You are allowed to use a cheat sheet on this exam. The
cheat sheet may be one side of one sheet of paper, whatever you want to
put on it.

The first (approximately) half of the exam will be trick questions
related to correlation and causation. I am not showing you any of
those, prepare to be tricked.

You will also see questions like this one:

1. For each situation below, what
analysis would you do?
Why would you do it?

a. I collect information about
people's income on a survey.
I want to compute the strength of the relationship between income and
number
of shopping trips.
b. I also ask if people would like a shuttle to run from campus
to Nashville. I want to know if the distribution of “yes” and
“no”
responses is different for the two sexes.

These are the (exact) questions you will answer for the "design an
experiment" section of the exam. There will be a different hypothesis.

H: If
people make a fist then they will feel more power.

4.

a. Which part of the hypothesis has to
be operationally defined to make an independent variable (copy it)? (2
points)

b. The treatment group would be? (3 points)

c. The control group would be? (3 points)

d. How would you operationally define the treatment and control groups
(this is a different question from parts b and c above)? (5 points)

5.

a. Which design will you use (circle
one: 2-group after-only, 2-group pre-post, matched, within)? Fill in
the chart below. (3 points)
If a part is not in your design, put a “-” under it. For the parts in
your design, fill in what you will do (for example, in our class
experiment we might put “measure pre-existing love” under “Screen”).
Screen Match Assign
Observe Manipulate Observe

b. Why have you chosen this design? (4 points)

6. Assess the validity of your design.

a. What is one threat to the internal
validity of the IV? How will you deal with that threat? (5 points)

b. What is one threat to the external validity of the IV? How will you
deal with that threat? (5 points)

7.

a. Which part of the hypothesis has to
be operationally defined to make a dependent variable (copy it)? (2
points)

b. How would you operationally define it? (3 points)

c. What is one threat to the internal validity of the DV? How will you
deal with that threat? (5 points)

d. What is one threat to the external validity of the DV? How will you
deal with that threat? (5 points)

Here are some more hypotheses from past exams, if you feel industrious:

H: If people read words
referring to things that occur high up in space (e.g., clouds), then
they will have a more positive mood.H: If people wear a heavy
backpack then a hill will look steeper to them.H: If people gaze into one
another’s eyes, then they will feel more romantic attraction.